Gbain-mill



H. MELLISH. v

, Grain Mill.

No.11,558. I Patented Aug. 22,1864.

'HIlllIIIIIII/Il ings, in which the same letters refer to the UNITED STATES PATENT OFFICE.

HENRY MELLIsH, on wA r-oLE, HAMPSHIRE.

GRAIN-MILL.

Specification of Letters Patent 1V0. 1 1,558, dated August 22,. 1854.

To all whom it may concern:

Walpole, in .the county of Cheshire and State of New Hampshire, have invented a new and useful Improvement in Grain-Mills; and I hereby declare that the following. is

a fullyand exact description of the same,

reference being had to the annexed draw-j same parts in all the figures. i

The nature of my invention consists in constructing on an arbor 1n. a suitable stand; a bur for grinding by placing together a series of circular saws. in a gang with a circular steel or other metallic plate longer than the saws to serve as a finisher of the meal; and to the disk of the gang oppo= site to the finishing plate attach a series of ring saws in a gang, whlch are kept apart from the circular saws and from each other by Washers on the bolts which confine the whole together. This bur is furnished with .an adjustable case toothed on the surface periphery or grinding surface of fitting the the bur.

Figure I is a perspective new of the m1ll. Fig. II is a perspective view of the end of the mill with its cap or front plate removed,

showing the adjustable case in its curb, and

the cracker rest which projects into the area inclosed by the ring saws, and which with them constitute the cracker. Fig III is the bur as if taken from itscase and reversedso as to show its back dlsk wlth the ring saws attached. Fig. IV 1s a longr Fig. V

tudinal sectional View of the mill. is the front plate to cover the bur, adjustable case, and curb. Fi VI is the cracker rest forprojecting into t e area inclosed by the ring saws.

A Fig. 1 is the bed piece with the puppets a a, with bearings and caps at their upper ends to hold the arbor I, from this bed piece also projects the puppet b and 2 corresponding one on its opposite side which is not seen in the drawing. j

C is the'curb to contain and hold fast the adjustable case, and consists of a circular plate B, see Figs. I, II and IV having a round hole through its center, see h, I, I,

and IV, and a projection, from one of its disks seen at 0 c .0 c, Fig. II. These projections being connected by a continuation along the periphery of the plate as seen at i Fig. II.

D D D D in Fig. II, are four gangsof .Fig. IV, and in like manner to 1 square or oblong plates packed into the Be it known that. I, HENRY MELLISH, of

curb C with one of their edges upon the disk ofthe plate B,and another hanging across w the periphery of the curb 0 at right angles,

andmade fast in their places with the set See Fig. I and, II, these gangs of plates forming the adjustable case, which is turned so as to form a true circle on its inner surface and cut with angling file like teeth across the edges of the plates forming it, see F Fig. II. Around the inner circle and upon the front surface of the adjustable case D file like teeth are out, see 9 Fig. II. The curb plate 13 is made fast to the puppet a. with the screwas .seen at J the puppets b, Fig. I.

Fig. III is the bur constructed by placing together on the arbor I a series of circular .saws, see in Fig. III and IV, to the front ;disk of this gang of saws is attached a finishing plate larger than the saws, that portion ofthe disk of this plate m Figs. III, and IV, which extends beyond the peripher of the saws is furnished with 'teethlike file teeth see m Fig. III. To the other disk of this bur are attached a series of ring saws made thicker at their inner than at their outer edges, see a Figs. III and IV; these ring saws are kept a little distance apart and from the gang of plates forming the bur by washers 0 between them, see Fig. IV, the

whole being confined together with thescrew bolt-s P see Figs. III and IV, this bur is confined on the arbor Z in its case with the screw nut P see Fig. IV, 1" Figs. II and IV is a cracker rest fitting on to the puppet a and into the spaces between the puppet a; and the puppetsb b on the front of the bed piece A, and is made fast to the puppet a with the screw .9 see Fig. VI with a portion f of it projecting and nearly filling the lower half of the area of the inner circle of the ring saws, see 1" Fig. IV. t in Fig. II is a slotted plate made fast to the cracker rest 1- with the screw a, which plate should be confined close to points of the teeth on the inner circleof the ring saws, to prevent thegrain from passing wlthout being cracked.

Fig. V is a dishing cap on front plate with a lip 41 see Fig. IV to fit the neck w of the curb C, see Fig. IV. This cap is made dishing so as to form a space X see Fig. IV about the finishing plate we so as to admit of the discharge of the meal through the opening 3 in the front plate Fig. V, see

y, FigqIV. This front plate is made fast to the curb O with screws through the holes .2 z z 2, in the plate Fig. V, and into the holes 2 z z 2 in the curb C, Fig. II, the plate in its place 1) Fig. I and IV, where its fastenings do not show.

a Fig. I is the hopper in the form represented in the figure, and is made fast to the curb B with the screws 6 see Fig I, and a corresponding one not seen in the figure, its lower end is confined to the cracker rest 7" with the screws 0 see Fig. II.

(Z is a section of the curb which may be removed by takingout the screws 6. which confine it, for the purpose of filing the saws when I required.

F Figs. I and IV is a regulating screw, and G a friction plate.

Operation: Having made the mill fast to some firm support by bolts through the holes E in the bed piece A and corresponding ones in its opposite side, and applying power by means of a belt over the pulley H, and giving it the necessary revolving motion, and the grain being fed into the hopper by any .of the ordinary means made use of to feed grain into grain mills, it will be seen that the grain will pass down upon the cracker rest in the area of the ring saws when it will be caught by the teeth on the inner edges of the ring saws, cracked and passed through the spaces between them and to the grinding surfaces of the case .and. bur, and between them by the oblique direction of the teeth of the bur and case, and finishing plate, where the requisite degree of fineness is given to the meal by turning the thumb F against the friction plate G, see Fig. IV, by which means it will be seen that the arbor Z will be slipped in its bearings and the finishing plate on will be moved back from the grinding surface of the adjustable case; so that by turning the screw one way or the other the meal may be made finer or coarser as may be required. It should here be remembered that the oblique direction of the teeth of the bur and case always when grinding causes the finishing plate to bear against the front of the adjustable case unless prevented with the screw F. And I will also state that the bur made of circular saws in combination with the adjustable case without the ring saws may be so adjusted as to grind shelled grain,

but not so fast and well with the same amount of power and for the purpose of grinding ears of corn in the above described mill the ring saws are absolutely indispensable, and therefore as a general grain grinder the mill would be incomplete without them.

To adjust the case to the bur the front plate or cup should be removed, the bur taken from the arbor, and one or more thicknesses of paper wound around the periphery of the plates constituting the bur; when it should be replaced on the arbor; the set screws e loosened and the plates constituting the adjustable case D slipped up to the paper on the bur, and made fast with the setscre'ws, when the bur should be taken out of the case, the paper removed, and the bur and front plate confined in their places.

Claims:

1. I claim as my invention the arrangement of the ring saws n, as set apart by the washers 0 on the bolts P with the cracker rest r inclosed by them in combination with the adjustable case D or its equivalent, for the purpose of cracking ears of corn and also shelled grain that it may be the more readily received between the bur 7c and the grinding surface of theadjustable case D, and for the further purpose, by the oblique direction of the teeth on the outer edges of the ring saws and that of the teeth on the inner surface of the adjustable case D of forcing the cracked grain into the space between the periphery of the bur 7c and the grinding surfaceof the adjustable case D.

2. I also claim the arrangement of the bur lo constructed as above described in combination with the finishing plate m and the jointly substantially in the manner and for the purpose above described.

HENRY MELLISH.

Witnesses:

JAMES WM. MELLISH, CAROLINE MnL IsH, 

